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SN65HVD232Q-Q1: Bulk current injection simulation

Shameer N
Prodigy 40 points
Part Number: SN65HVD232Q-Q1

Hello,

We would like to do Bulk current injection test on the CAN communication line.

Before going in to the actual lab test we would like to simulate the bulk current injection in the CAN communication line.

We know that the BCI(Bulk current Injection) test will be done from 1MHZ to 400MHZ ,with amplitude of 60mA.

Kindly let us know the best possible ways to simulate BCI for optimising the design.

Regards

Shameer

  • 0
    TI__Guru 72272 points

    Shameer,

    I'm talking with our design team to see if we have any good examples for simulation. I will get back to you with a response by the end of the week. Thank you for your patience.

    Regards,

    Eric Hackett

  • 0 in reply to Eric Hackett
    TI__Guru 72272 points

    Shameer,

    I got a reply quicker than I thought I would.

    So our design team hasn't had a lot of luck simulating this in the past, but I can tell you what they've done to try and make it work and see if that helps. A block is created that couples the RF noise through mutual inductors onto CANH and CANL. This block is then placed in the middle of a CAN bus, with one side labeled CAN monitoring, and one side labeled CAN primary. Noise is then injected into the BCI block through the RF input port while CAN communication is engaged on the monitoring side, and the CANH and CANL are probed on the primary side.

    Which definition of BCI will you be following?

    Regards,

    Eric Hackett 

  • 0 in reply to Eric Hackett
    Prodigy 40 points

    Hello Eric Hackett,Thanks for the quick reply.

    We will be performing ISO 11452-4:2011 Substitution method-level1/class A BCI.

    It would be really great if you can share the available models and support us for the BCI simulation. 

    Regards,

    Shameer

  • 0 in reply to Shameer N
    TI__Guru 72272 points

    Shameer,

    Unfortunately the models we have available are for internal use only by our design team, not something we can share. We don't have a lot of experience simulating BCI though, we typically simulate DPI and emissions, then run both those tests on our benches and extrapolate the DPI date for BCI testing. 

    Regards,

    Eric Hackett